51 lines
1.3 KiB
Python
Executable File
51 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import math
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import subprocess
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import sys
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# ╰─○ chronyc tracking
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# Reference ID : 192.53.103.108 (ptbtime1.ptb.de)
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# Stratum : 2
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# Ref time (UTC) : Mon Oct 30 09:48:39 2017
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# System time : 0.000000000 seconds fast of NTP time
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# Last offset : +0.000054065 seconds
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# RMS offset : 42.973133087 seconds
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# Frequency : 421.567 ppm fast
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# Residual freq : +0.013 ppm
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# Skew : 0.218 ppm
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# Root delay : 0.017120 seconds
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# Root dispersion : 0.001280 seconds
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# Update interval : 238.4 seconds
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# Leap status : Normal
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KEY_SYSTEM_TIME = 'System time'
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KEY_PARSED_OFFSET = 'Parsed offset'
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def get_stats():
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stats = {}
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for line in subprocess.check_output(['/usr/bin/chronyc', 'tracking']).split('\n'):
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line_parts = line.split(' : ')
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if len(line_parts) != 2:
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continue
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desc, cont = line_parts
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stats[desc.strip()] = cont.strip()
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offset_parts = stats[KEY_SYSTEM_TIME].split(' ')
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offset = float(offset_parts[0]) * (1 if offset_parts[2] == 'fast' else -1)
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stats[KEY_PARSED_OFFSET] = offset
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return stats
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def main():
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stats = get_stats()
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if math.fabs(stats[KEY_PARSED_OFFSET]) > 1.0:
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print('{:.2f}s time diff'.format(stats[KEY_PARSED_OFFSET]))
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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